Apparatus for manipulating globes



June 2, 1925.

J. O. FIERPOINT APPARATUS FOR MANIPULATING GLOBES 2 Sheets-Sheet 1 Filed March 22, 1924 INVENTO'R J 0. Rie/point ATTORNEY June 2, 1925.

J.l PIERPOINT APPARATUS FOR MANIPULATING GLOBES Filed March 22, 1924 Y 2 Sheets-Shan#J 2 u lNvENToR J0. -fer/oo/ht ATTORNEY Patented June 2, 1925.

UNITED STAT-ss;rem-1;;N144-g 0FFIC;;

JOHN ORB PIERPOINT, .OF PANA., ILLINGIS, ASSIGNR OF ONILHALF TO PIERIPIN'T,'OFV PANA, ILLINOVS.

APPARATUS FOR MANIPULATING GLOBES. i i

Application Ied March 22, 1924. Serial Nerf/01,133.

lV ith the ever increasingI use of largedisplay signs equipped with numerous 'electric globes., the demand for a practical apparatus whereby the bulbs may be manipulated "troniy a distance, in effecting the reniovr-.l and replacenient thereof, `also increases. l ain avare that attempts have been niade yte supply this want but, judging' freni the factV that while the business of sign tending` has `grown to the proportions warranting the organization ot numerous public sign service companies, the operatives still employ the.: 5 hand, ladder and multiple man niethod,

with the consequent danger to lite -and lnnb and with great loss of time and labor, economically considered.

lt therefore appears that the situation :is due to the fact that an apparatus such as would entirely suit the desires anddeinands of these operatives, in beingl ot neat de sign, oi' simple and inexpensive structure, `possible ,of adaptation for and positive in its operation inclfecting manipulation ofthe electric globes regardless of reniotcness and inaccessibility of position, and also in eticcting removal of broken bulb-bases without danger of electric shock, a feature vry desirable as it is necessary in order to attain pro] er results, that the current be permitted to flow through the sign during' the operation, has not been produced. .rllierefl-orerit 'is the object oit the invention to provide an apparatus oli the type stated Which embodies such novel structural tentures and combina! tion and arrangement thereof, as will sup` plv all ot the needs herein outlined.

lilith the above7 and other objects iii view.

details of construction, combination anu arrangement of parts, all et `which ivillbe ret the invention further` resides in thosewnovel fully described, then heparticularly pointed out in the appended clain'is, reference being had to the accompanying drawing', in which; 55

' Figure l is a diagranin'iatio plan vie\v,.tlf1e adjustable Yifcatiue ot'- the invention being illustrated. .i i Figure 2 is diagrammatic side elevation of the invention. j ce Figure 3 isA anfenlarged vertical sectionoif` the two-way casting and connections.

l*1 figure l isl en enlarged horizontal section taken on the line iL-l on Figure 3. n

Figure 5 is an cnlzirgedl vertical sectioi'i e oi` the adjustable bearing heads and the gripping linger connections. i

Figure 6. an'enlargedhorizontal section of the parts shown in Figure `5. f l Figure 7 an enlarged cross section'takeu on the line Tee-7 on Figure t M .t Figure 8 is a central longitudinal sectionf of the broken 2globe base removing attachnient. i V i' 'y Y i i n Figure 9 is a perspective view showing 7:A one of the gripper finger structures. Figures l0 andllk are .diagrammatic d@ tails illustrating kthe n'ianner of forming the base engaging nieinber -o't the attaclnnentv shown in Figure 8. p o In the drawings, l represents ,an ,angled handle structure which includes aT-head adapted to act as a rest for .the"apparatus,Y such as Will AOrreatly ald in holdingthe saine.y

While rotation of the rotating' parts is effect! 8;,` t

ed t'or manipulatiiigl electric globes at inac#y cessible and` vreinote points. The t handle structure issecured to the nia-in drive shaft casing' 2, as at 8, which casing' consists of a long hollow tube constructed of :suitable light Weight material, andis suitably braced therewith as at el.

A tivo-ivaylbcaring casting is provided having end caps by which access may be had to the interior portions of the said casting which provide bearings vfior the Apower transn'iission connections later to be had.

upon one end voll the shaft casing 2 andl a suitable bearing; head Tis secured upon the 1D@ other end thereof. A lateral etension S ot the tivo-Way castthereof, and whereby rotation may be manually imparted to the drive transmissions Vlater to be described.

The crank shaft 9 has secured to the end' thereof opposite the crank `1() a worm gear 11 adapted to mesh with a worm gear 12 mounted on the adjacent end of the main drive shaft 18 for which the casing 2 forms a housing and a rigid supporting medium.

A worm gear 14 is mounted on the other end of the drive shaft 13 and is suitably housed within the bearing head 7. From the description thus far, it will be observed that the structure 1 provides a suitable supporting medium whereby the relatively long shaft casing 2, and the operativestructures cooperative therewith, may be ysecurely held or. supported Vfor effecting the desired in anipulation of electric globes at remote andV inaccessible points, and that by rotation of the crank shaft 9 by the crank 10 rotary motion will be imparted to the main drive shaft 13 and, of course, to the said worm gear 14 at the remote end thereof.

Thel bearing head 7 includes an extension in the nature of a hub 15 which is suitably hollowed to accommodate the worm gear 16 mounted upon or kformed integral with the shaft sleeve 17 having rotative bearing in the said hub, and thesimilarly constructed hub bearing lfL of the bearing head 7a cooperative with the said hub and bearing head 15 and 7 in a manner later to be described. l

The shaft sleeve 17 is fitted over, to surround and be rotatively mounted'upon, a pivot and securing bolt and nut connection 18-19 which pass through the hubs 15-15 in a manner whereby a pivotal connection thereof is provided which, upon loosening of the securing nut 19, may be moved so as to vary the angular relation of the said bearing heads and t-he shaft sections having bearing therein and, by the securing of the said nut, effecting the desired securing` of the parts to the adjusted positions.

The shaft sleeve 17 is also provided with a bevel gear 20 mounted thereupon or formed integral so as to rotate therewith, and the said bevel gear is adapted to mesh with a bevel gear 2l on the supplemental or driven shaft 22 having bearing in theV extension 23 of the bearing head 7 hereinbefore mentioned. y j

A cylindrical wooden head 2% is fixed upon the end of the driven shaft 22 to rotate therewith and to the said head the gripper fingers 25 are pivotally connected, as at 26. The pivotal connection 26 is preferably in the natureY of a pin which passes through' the wooden block and the shaft end in a manner for projecting from the block to provide the pivots and also to aid in securing the said block upon theshaft end. It will be observed from the drawings the gripper fingers are preferably'constructed of heavy wire shaped to provide an effective contact with the globes to be manipulated and suitably covered with soft material, such as leather or rubber, to prevent fracture of the said globes, and also to provide a better gripping surface for the purpose of facilitating such globe manipulation. The covering of the-fingers is indicated by the numeral 27. f

Another cylindrical wooden head 28 is slidably mounted on the said driven shaft and is provided with an axial sleeve 29 to which the said head is secured, in a manner for providing a suitable sliding bearing for the. said head upon the'said shaft. sleeve includes an enlarged head portion 30 so positioned as to provide a space between the said headv and the wooden head .28.

An abutment washer 31 is pin-connected to the drivenr shaft, as at 32, and a coil spring 33 is' interposedv between they said washer and the head 30 in a manner for normally forcing the wooden head 28 toward the fixed head 24 for a purpose soon to be described.

`A two-part clamp member 34, in the nature of a pair of opposing metal strips is secured upon to move withthe head 28 and the means for securing the clamp member upon the head 28 also' provides for pivotally securing to the said clamp a pair of rigid arms 35 which are in turn pivotally connected as at 36 to the gripper fingers 25. By .reason of the connection just described, it will be apparent that movement longitudinally of the'slidable head 28 will effect an opening or closing of the gripper lingers. The action of the coil spring being to normally force ythe gripper fingers closed, as in tight clamping relation with the globe to be manipulated, it is obvious that movement of the head 28 against the spring action will effecta temporary opening ofl thesaid fingers, the fingers again resuming their clamping relation when the forceV applied to effect the vmoving of the said 'head against the spring action is removed from action. j l y For providing for movement of the slidable head 28 in a manner for effecting the temporary opening of the gripper fingers to permit positioning the same over the globe to be manipulated, so that when the parts are allowed to resume their normal position the globe will be gripped thereby to be readily manipulated, I provide a spring compressing finger opening bar 87. l

The bar 37 may be constructed of a flat piece of stout strap iron shaped that it may The lll)

parallel the driven shaft adjacent the spring 38 and include a rightfangled portion 38 adapted to freely fit over the sleeve 29 in the space yprovided between the heads 30.

and 28, and an up bent portion 39 pivotally secured as at 4() to the actuatinglever 4l which is in tnrnpivoted at 42 to the bracket 43 securely clamped as at 44 tothe bearing head 7% It' will be obvious, that rockingof the lever 4lV will effect longitudinal movement of the bar 37 for moving the head 28 against the action of the spring j 33 and for the purpose abover stated.`

ln order to provide for a desired rockn ing of the lever 4l in its position remote.

from the sii'iaortine' handle structure l, I provide pulley and cable devices extending from the lever down to the handle structure in position for being,` conveniently actuthe pulleysv 45 and 4G, andlias the other` end thereof secured to the clamp bracket 47, as shown. Pull knobs5() may be se cured upon the cable`48 to facilitate pulling thereof ifso desired.

It is also a purpose of the invention to provide a suitable attachment which mayV be readily applied to the apparatus and operative for the purpose of removingl the bases of such electric globes as have been broken. The attachment is so constructed that it may be readily mounted upon the apparatus thus far described without any alteration thereof whatever. It is also a purpose, in view of the fact that to obtain the best results in manipulatingl the globes ofy a display sign, that the current be flow-l ingthrough the sign during,` the operation, toprovide a means of mounting' and a structure of suchV an attachment that will make it impossible for current from the sign sockets to be conducted through the apparatus and eilect a shocking of the op-` erator thereof.

In carrying` outV the feature of my invention-pist described, l provide the pivot pins 26 of the head 24 with spacer sleevesl 51 which tit over the said pinslbetween'the said head and the portions ofthe grip-per linger structures which engage the pins in a manner for providing' a substantial space between the said finger. structure portions and the said head.

The attachment comprises a hollow pipe section 52 of a diameter such as will periuit a close butfi'ee fitting' of the same over the head 24. the thickness of the pipe being very slightly less than the width of the spaces provided by the spacer sleeve 51. The pipe section 52 is suitably7 slotted, as

l at to straddle thepivot pins and spacer` :sleeves 26 and 5l and thus permit the desired fitting of vthe `said ppesection` overthe said headand` also for providing' for imparting rotation ofthe said pipe sectioir. bythe said head when the same is rotated by the ytransmission devicesl hereinbefore described.

The pipe section 52 is `fitted with a core i filler or plug of wood `or other .suitable electricity non-conducting extends axially ofthe plus; 54 and is pro# p material. l A shaft extension section 55 is secured in and vided either with an integral enlargement v` or with another pipe vsection 56 secured thereupon to' rotate therewith. The` section 56 is forinedat its end in' a mannen for providing a removing bit .5T/shaped so that 'when' broughtinto contact with the base of a broken electricv globe and the apparatus .set into motion it Will engage the said base in a manner-forremoving it from its socket.l For this purpose, the bit'por-a` tions are'constructed to (cut or grip 'only when rotation to the left is imparted, such being the rdirection of the rotation Vobviously necessary fin removing av broken globe baseffroinits socket.

ylVliile, as beforestated, it may be desir-`4` able to form the section 56 as an integralr Y part of the shaft section 55, itis also possible' to forn'ithe saine from a pipe section" which may besecured upon the end ofthe 'l shaft section in the manner illustrated in: the drawings. formed from a pipe section, it is constructed in the manner diagrainmatically illustrated in Figures l()` and l1 .of the drawings, from which it will be observed that the original pipe section. is slitted in four places,` as at 5S, and the individual portions thus formed between the slits bent in the manner illustrated for forming the desired bit structure.

By reason of providing;` the', electricity non conducting plug' 54, it is impossible for electric current to b-econducted through 'the attachment` and therefrom throughV the' apparatus. p

In operation, the operator will `irst observe the position of the sign and consider the position of the driven shaft which will present the gripping lingers to the l`qlobes to be manipulatedY in the inost effective manner. He will then utilize the bolt and nut connections lS-lf)V in effecting the de sired adjustment vof the driven shaft. The parts are now in condition for being effec* tively operated yfor the desired purpose.`

Thenopelator now taking; the apparatus bythe lower end of the casing' 2, and the handle structure l, using the latter as a supporting andV l'i-alancing mediuml` pulls upon the cable 48 in ainanner for acting' upon the lever 4l and effecting' a long;i tudinal movement of the slidable headQS Vagainst the action of the spring 33, such as Vlien the said element is' iic vgers and permit the application thereof over the globe to be manipulated. Then,

by releasing the pull on the cord 48, the` spring 33 will come into action and forcey the lingers into contact with the globe when, upon rotation of the driven shaft by the crank and power transmission connections, the globe may be readily removed from or secured intoits socket, as the case may be, in accordance with the direction of rotation imparted to the crank l0.

lVhile the single pivoted adjustment feature, lmade possible by the parts 15-19 inclusive, will suffice for all ordinary globe manipulation, it may be desired to vprovide an axial adjustment to'cooperate therewith and thus make possible pivotal adjustments at any plane of movement.

For this purpose, the pipe 2 is provided with a relatively long thread-ed end portion 59 adapted to be relatively loosely threaded into the T-head 3, thereby making it possible to move the main portion ofv the v pipe 2,y axially', with relation to the supporting handle struct-ure l l and thus cooperating with `the pivoted connections 15-19 in providing any adjustment,axially and pivotally. A jam nut 60 may be provided which, when screwed tightly against the-T-head 3, will rigidlyjsecure the main portion of the pipe 2 to its particular axial adjustment with relation to the position of the handle structure l, see Figures l, 2, 3 and 4f. IVhile I have shown and described a novel mechanism for removing the bases of broken bulbs, I do not now claim the samek in this application, claims thereto having been eliminated from this application for purposes of division.

From the foregoing description, taken in connection with the accompanying drawings, it is thought the novel details of construction, the manner of operation and the advantages of my invention, will'be readily apparent to those skilled in the art to which it relates. `What I claim is: n p 1. In apparatus of the class described, a main driving shaft, a driven shaft adapted to have rotation imparted thereto from saidr driving shaft, means forrotating the driving shaft` grapper fingers mounted to rotate with said driven shaft, power transmission devices for imparting rotation from driving shaft to driven shaft, said devices providing a pivotal connection whereby the driven shaft may be moved to angularrclation with the driving shaft, and including freely movable parts and bolt and nut connections forming a pivot for said partsand adapted to be actnated'to permit angular movement to -provide adjustment or to secure such adjustment, j j

2. In apparatus of the class described, a

to have rotation imparted thereto from said` driving shaft, means for rotating the driving shaft, gripper fingers mounted to rotate with said driven shaft, power transmission devices'for imparting rotation from driving shaft to driven shaft, a two-part housing for receiving the adjacent parts of the drivingl and driven shafts and the power transmission devices, and bolt and nut connections passing through the housing parts to provide an adjustable pivot and adapted to be actuated to permit and secure adjustments of relation between driving" and driven shafts.

3. In apparatus of the class described, a uiain driving shaft, a driven shaft adapted to have rotation imparted'thereto from said driving shaft, means for rotating the driving shaft, gripper lingers mounted to rotate with said driven shaft, power transmission devices for impartingrotation from driving shaft -to driven shaft, a two-part housing for receiving the adjacent parts of the driving` and driven shafts and the power transmission devices, aiid bolt and nut connections passing through the housing parts and through the power transmission devices to provide an adjustable pivot and adapted to be actuated to permit and secure adjustments of relation between driving and driven shafts.

L In apparatus of -the class described, a main driving shaft, a driven shaft adapted to have rotation imparted thereto from said driving shaft, means for rotating the driving` shaft, gripper fingers mounted to rotate with said driven shaft, power transn'iission devices for imparting rotationfrom driving shaft to driven shaft, said devices providing a pivoted connectiony whereby the driven shaft may be moved to angular relation with the driving shaft, means for tightening thei said devices to secure the parts tov adjusted' position, a relatively long supporting andf carrying means foi` the driven shaft, and au angled extension secured thereto to provide a supporting rest.

5; In apparatus ofthe class described, a main driving shaft, a driven shaft adapted to have rotation imparted thereto from said driving shaft, means for rotating the driving shaft, gripper fingers mounted to rotate with said driven shaft, power transmission devices for imparting rotation from driving shaft to driven shaft, a two-part housing for receiving the adjacent parts of the driving and driven shafts and the power transmission devices, 'bolt and nut connections passing through the housing parts andV through the power transmission devices to provide an adjustable pivot and adapted to be actuated topermit and secure adjustments of relation between driving and driven shaft,`a relatively long supporting' driving` tightening the said devices to `semire the `parts to adiusted position, a relatively longsupporting and carrying means for the driven shaft, and angled extension secured thereto to provide a supporting rest, and ineans for imparting rotation to thedriveii shaft disposed in lateral relation 'thereto at a point above the end ofsaid angled'els'.-l tension. i

T. In apparatus of the class described, ay main drivingshaft, a driven shaft adapted l to have rotation imparted thereto from said driving shaft, gripper fingers niounted to rotate withY said driven shaft, vpower transmission devices for imparting rotation from shaft to driven shaftV a two-part housing' for.v receiving the adjacent partsof the driving and driven shafts and the power transmission' devices, bolt and nut eonnec-. `tions passing through the housing parts and through the power transmissiondevices` to provide an adjustable pivot andadapted to be actuated to permit and secure adpistments of relation between driving and driven shafts, a relatively long supporting and carrying means `for the Adriven shaft, an angled extension secured thereto to provide a supporting rest, and means for ir n. parting rotation to the driven .shafts d isposed in lateral relation thereto at a point vabove the end of said angled extension.

8. In apparatus of the class` described, a main drivingsliaft, a driven shaft adapted to have rotation imparted `thereto 1from said driving shaft, means for rotating the driv? r I, i ing shaft, powei' transmission devices ron.

imparting rotationfroin driving toI driven shaft, said devices providing a pivoted connection whereby the driven shaft may be moved to angular relationwiththe driving 1 shaft, a head fixed to the end of thedriven shaft, griliipiiig lingers pivoted to said head,`

a second headhslidable on said driven shaft, connections between the slidable head and the iingerswhereby the latter will be inoved in accordance `with inovementof the former, I means normally tending to move the slid-V able head outward tool-ose the fingers, and means for moving the slidable head against said outward moving tendency. y

9. In apparatus of the class described, a

main drivingshaft, a driven'shaft adapted.

to have rotation imparted thereto'from said driving shaft, means for rotating the driving shaft,` power transmission devices lfor imparting rotation froindrivingto `driven shaft, said devices providing a. pivoted con-V nection .vhereby the driven shaft `may be moved Vto angular relation with the driving shaft, a head fixed tothe end of the driven shaft, gripping lingerspivoted to saidhead, a second head slidable on saidV driven shaft, connections between the slidable headjand the fingers whereby the latter will bemoved in accordance with movement of the former,

a sleevein and extending `from the slidable head` and itself having ahead positionedto provide a space between the same and the slidable head, means normally tending to move the slidable `head outward to close the fingers,and means extending into the space between the heads and freely surrounding the sleeve andwhereby movement ofi-the slidable head may be effected against the said outward moving tendency. i

l0. In apparatusof theclass `described, a main driving shaft, adriven` shaft adapted to have rotation imparted thereto from said driving` shaft, means for rotating ,the driv ingshaft, power transmission devices for' imparting rotation froindi'iving to driven shaft, saiddevices providing a pivoted connection whereby the driven `shaft may be?4v shaft, ahead fixed kto the end ofthe driven shaft, gripping fingers pivotedito said head, a secondhead slidable onrsaid drivenshaft, connections` between the slidable head and the fingers whereby the latter willbe moved in accordance with movement lof the former, a sleeve in and extending fronithe slidable c head and itself having a headpositioned to i moved tozangular relation with the driving y provide a space between the same and the i yslidable head, aspring acting againstthe` j sleeve carried head and normally tending to `move theslidable head outwardly toy close `the fingers, an angled member extending into the space between the heads and freely surrounding the sleeve and substantially `1 aralleling thevdriven'shaft, and lever and cable devices whereby the angled member may be moved Ato cause movement rof the Vslidable head against the spring action.

l1. In apparatus of the class described, a iiiain driving` shaft,ia driven shaft adapted to have rotation imparted thereto from said drivingshaft, means for rotating thedriving shaft, power transmission. `devices for `impartingrotation from driviiigto driven shaft, a two-part housing lfor receiving the adjacent parts ofv the-driving vand `driven .shafts and the vpower transmission devices,

boltj and,` nut connectionsfpassing through the housing parts and through the power transmission devices to provide an adjust able pivot and` adapted to be. actuated to perniitf-and secure adjustments of relation between driving and Vdriven shafts, a head fixed to the end of the driven shaft, gripping fingers pivoted to said head, a second head slidable on said driven shaft, connections Vbetween the slidable head` and the fingers Fwhereby theV latterwill be moved in accordance with movement of the former, ineans 'normally tending to move the slidable head outward to close the fingers, and means for moving the slidable head against saidv out-` ward moving tendency,

12. In apparatus of the class described, a main driving shaft, a driven shaft adapted to have rotation imparted thereto from said Vdriving shaft, means for rotating the 'driving shaft, power'transmission devices for able pivot and adapted to bev actuated to main driving shaft, adriven shaft adapted" CJ l permit and secure adjustments of relation between driving and driven shafts, a. head fixed to the end of the rdriven shaft, grippinO' fingers pivoted to said head, a second head slidable on said driven sha-ft, connections between the slidable head yand the fingers whereby the latter will be moved in accordance with vmovement of kthe former, means normally tending to move the slidable head outward to close thef'in'ger, means for moving the slidable head against the outward. moving tendency, a relatively'long supporting and carrying means for the driven shaft, and an angled extension se-v cured thereto to provide a supporting rest.`

13. In apparatus of the class described, a

to have rotation imparted thereto from said driving shaft,'powe`r transmission devices for in'iparting rotation from driving to driven shaft, a two-part housing for receiving the adjacent parts of. the driving and driven shafts and the'power transmission devices, bolt and nut connections passing through the housing pai'ts and throu'glilthe power transmission devices to provide an adjustable pivot and adapted to be actuated to permit and secure adjustments of relation between driving and driven shaft, a head fixed tothe end of the driven shaft, gripping lingers pivoted to said head, a second head slidable on said driven shaft, connections between the slidable head and the fingers whereby the latter will be moved in accord-" ance with movement of they former, means normally tending to move the slidable head i outward to close the fingers, means for inoving the slidable head against said outward moving tendency, va relatively long supporting and carrying means for the driven shaft, an angled extension secured thereto to providea supporting rest, means for imparting rotation to the driven shaft disposed in lateral relation there-to at a point above the end of said angled extension.

1li. In apparatus of the class described, a l

shaft, a two-part housing for receiving the adjacent parts of the driving and drivenv shafts and the power transmission devices, bolt kand nut connections passing through the housing` parts and through the power `transmission devices to provide an adjustable pivot and adapted to be acuated to pci'- mit and secure adjustments of relation between driving and driven shafts, a head fixed to the end of the driven shaft, gripping fingers pivoted to said head, a second head slidablel on said driven shaft, .connections between thev slidable yhead and `the fingers whereby the latter will be moved in accordance with movement of theforiner, a sleeve in and extending from the slidable head and itself having a head positioned to provide a space between they same and thevslidable head, means normallytendng to move the slidable head outward to `close ythe fingers, and means extending/into the space between the heads and freely surrounding the sleeve and whereby movement of the slidable head may be effected yagainst the said outward moving tendency.

l5. In apparatus ofthe class described, a main driving shaft, a driven shaft adapted to have rotation iinpai'ted thereto fro-1n said driving shaft, means for rotating the driving shaft, power transmission devices for in'iparting rotation from driving to driven shaft, `a two-part housing .for receiving the adjacent parts of the driving and driven shafts and the power transmission devices, bolt and nutjconnections passing through the housing parts and through the power transmission devices `to provide an adjustable pivot and adapted to be actuated to pei'- mit and secure adjustments of relation between driving and driven shafts, a head fixed to the end of the driven shaft, gripping fingers pivoted to said head, a second head slidable onsaid driven shaft, connez- I lsleeve in 'and extending from the slidable head and itself having ahead positioned to `provide aY space between the saine and the slidable sleeve, aspring acting against the sleeve carried head and normally tending` to move the fingers, an angled member extend.-

ing into the space betweenthe heads and vfreely surrounding the sleeve and substantially paralleling the driven shaft, and lever llO and cable devices wherebythe angled :member may be moved to cause movement of the slidable head againstthe springaction.A

le. In apparatus ofthe class described, a main driving shaft,.a driven shaft adapted to have rotation imparted thereto from said driving shaft, meansfor rotating the drivhousing parts and through the power transmission devices ,to provide an adjustable pivot and adapted to be actuated to permit and secure adjustments-of relation between driving ane driven-shafts, a head fixed to the endof thedriven shaft, gripping` fingers pivoted to said head, a second head slid-able on said driven shaft,rconnections between the slidable head and the fingers whereby the latter will be moved yin accordance with movement of the former, a sleeve in and er;- tending from the slidable head and itself having a head positioned to provide a space between the same and the. slidable sleeve, a spring acting against the sleeve carried head and normally tending to move the ngers, an angled member extending` into the space between the heads and freely surrounding the sleeve and substantially paralleling the driven shaft, lever and cable devices whereby the angled member may be moved to cause movement of the slidable head against the spring action, a relatively long supporting and carrying means for the driven shaft, and an angled extension secured thereto to provide a supporting rest.

17. In apparatus of the class described, a main driving shaft, a driven shaft adapted to have rotation imparted thereto from said driving shaft, for in'iparting rotation from driving to driven shaft, a two-part housing for receivthe adjacent parts of the driving and nriven shafts and the power transmission devices, bolt and nut connections passing througli the housing parts and through the power transmission devices to provide an adjustable pivot and adapted to be actuated to permit and secure adjustments of relation between driving and driven shafts, a head fixed to the end of the driven shaft, gripping fingers pivoted to said head, a second head slidable on said driven shaft, connections between the slidable head and the lingers whereby t-he latter will be moved in accordance with movement of the former, a sleeve in and extending from the slidable head and itself having a head positioned to provide a space between the same and the slidable sleeve, a spring acting against the sleeve carried head and normally tending power transmission devices to move the fingers, an angled member, eX- tending into the vspace between the heads and freely surrounding the sleeve Aand "substantially paralleling the driven shaft,`lever and cable devices Vwhereby the angled member may be moved to cause `movement of the slidable head against the spring action, means for imparting rotation to the driven shaft disposed in lateralrelation thereto at a point above the end of said angled exw` tension. i

18. In apparatus of the class described including a driven shaft and means for imparting rota ry motion thereto, a head fixed to the end of thedriven shaft, gripping fingers pivoted to saidhead, a second head islidable on said driven shaft, connections between the slidable head andthe fingers whereby the latter will bemoved in accordaneeiwith movement ofthe former, a sleeve in and extending from the slidable head and itself having a lhead Vpositioned to provide a space between the same4 and the slidable head, means normally `tending to .move the slida- `ble head outward to close thefingers, and means extending into the space between the heads Vand freely surrounding the sleeve and whereby movement of the slidable head maybe effected against the said outward moving tendency.

12). In apparatus of the class described including a driven shaft and means for imparting rotary motion thereto, a head fixed to the end of the driven shaft, gripping' fingers pivoted to said head, a second head slidable on said driven shaft, .connections between the slidable head and the fingers whereby the latter will be moved in accord ance with movement 0f the former, a sleeve in and extending from the slidable head and itself having a head positioned to provide a space between the same and the slidable head, means extending into the space between the heads and freely surrounding the sleeve and whereby movement of the slidable head may be effected against the said outward moving tendency, a spring Y acting against the sleeve carried head and normally tending to move the slidable head outwardly to close the fingers, an angled member extending into the space between the heads and freely surrounding the sleeve and substantially paralleling the driven shaft, and lever and cable devices whereby the angled member may be mov'edto cause movement of the slidable head against the spring action. i

20. In apparatus of the class described, a main driving shaft, a driven shaft adapted to have rotation imparted thereto from said driving shaft, means for rotating the drivingV shaft, gripper fingers mountedy to rotate with ysaid driven shaft, power transmission devices for imparting rotation from driving shaft to driven shaft, said devices "roVY providing a pivotal connection whereby the driven shaft may be moved to angular relation with the driving shaft, means for tightening ythe said devices to secure the parts to adjusted position, and coupling devices permitting aXial adjustment of the devices providing the pivotal connection.

21. In apparatus of the elass described, a main driving shaft, a driven shaft adapted to have rotation imparted thereto from Said driving shaft, means for rotating the driving shaft, gripper fingers mounted to rotate with said driven shaft, power transmissiondevices for imparting rotation from driving shaft to driven shaft, said devices providing a pivoted connection whereby the driven shaft may be moved to angular relation with the driving shaft, means for tightening the said devices to secure the parts to adjusted position, a relatively long supporting and carrying means for the driven shaft, an angled extension secured thereto to provide a supporting rest, and coupling devices associated with said supporting` 25 means whereby axial adjustment of the supporting means with relation to the angled extension is made possible.

29,. In apparatus of the class described, a main driving shaft, a driven shaft, a swivel joint with transmission gearing between said 'driving and said driven shaft adapted to swing the driven shaft on, an axis in a plane normal to that of the driving shaft, gripper fingers mounted to rotate with said driven shaft, means for securing said swivel joint against swiveling movement, and means for effecting rotational adjustment of said swivel joint around the axis of the driving shaft.

23. Ini apparatus ofthe class described, a driven shaft, a xed head on the driven shaft, a slidable head on the driven shaft, means normally forcing the slidable vhead against the fixed head, arms pivoted to the fixed head and link-connected to the slidable head,ka stiirup for moving the slidable head abnormally, a Cable for .moving the stirrup, and gripping elements carried by the pivoted arms.

JOHN OBR PIERPOINT. 

